Mine cooling method based on outdoor temperature

Abstract

The invention discloses a mine cooling method based on outdoor temperature. The cooling method comprises the steps that a ventilation pipeline is arranged; a refrigerating system is arranged outside amine and communicates with the ventilating pipeline; a microcomputer unit is arranged, regulates and controls the refrigerating system based on the external temperature, and can communicate with theoutside through a remote control box; and the refrigerating system comprises a ventilation system and a water cooling system, the water cooling system provides a cold source for the ventilation system, cold air of the ventilation system from the water cooling system is fed into a mine operation platform through a fan, the temperature of the operation platform is kept at 25-28 DEG C, and when the external temperature is lower than 14 DEG C, the microcomputer unit reduces or stops the operation of a refrigeration host of the water cooling system and the air amount of the ventilation system according to enthalpy change regulation and control, and starts the refrigeration host of the water cooling system when the external temperature is higher than 14 DEG C. The mine cooling method has the advantages that the structure is simple, and the use is convenient.

Description

technical field [0001] The invention relates to the technical field of underground refrigeration in mines, in particular to a cooling method for mines based on outdoor temperature. Background technique [0002] The air in the mine refers to the general term for the mixture of various gases, steam and mine dust in the mine. The temperature and humidity of the air in the mine are mainly determined by the physical and chemical properties of minerals and rock formations, mining depth, production technology, geographical and geological factors. [0003] At present, mines rely on setting up relevant equipment underground to maintain the environment. The maintenance includes cooling and cooling deep wells in summer, heat preservation and antifreeze in winter shafts, and design of cold and heat sources. When heating in winter, first use underground water to extract part of the heat. Due to the high temperature of the mine water, it is not suitable to directly enter the evaporator o...

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Problems solved by technology

[0006] Mine is an important resource. The depth of some mines can reach 1200 meters, and the temperature of the operating platform is as high as 43°C. Therefore, it is necessary to cool down the operating platform. At present, the mine has fiberglass ducts or wells to supply air. The mine operating platform from the outdoor passageway adopts Three fans are connected in series to supply air. Each fan has a dynamic pressure of 2500Pa and an air supply volume of 8000m3 / h. This method cannot guarantee the environment of the work platform, especially the steam and mineral dust in the air cannot be removed.

[0007] Although the current design can meet the requirements of deep well refrigeration and cooling in summer and wellbore heat preservation and antifreeze in winter, the design of this application is complicated, and there are many equipments, and most of the equipment are installed underground, so repair and maintenance are very difficult, which is not conducive to long-term underground production.

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